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2. Pipe-in-pipe system - Wikipedia

   en.wikipedia.org/wiki/Pipe-in-pipe_system

   Internal pipes can be seen entering the external pipes in the bottom of the cabinet. In case of an internal leak, water will overflow through the external piping and can be detected inside the cabinet. A pipe-in-pipe system [1] is a form of plumbing where all water pipes are running inside another pipe. Its purpose is to ensure that any leaks ...

3. Basement waterproofing - Wikipedia

   en.wikipedia.org/wiki/Basement_waterproofing

   The main purpose of external weeping tile is preventing water from getting into a basement. However, these pipes can become clogged or damaged, which causes excess water to put pressure on internal walls and basement floors. Water build up inside window wells, after heavy rain or snow, can lead to leaks through basement window seams.

4. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

5. Some cities are digging up water mains and leaving lead pipe ...

   www.aol.com/news/cities-digging-water-mains...

   The pipe carrying water to their home was made of it, too. Providence’s tap water had had dangerous lead levels for years. Around the country, utilities have been leaving lead pipe in the ground ...

6. Standpipe (firefighting) - Wikipedia

   en.wikipedia.org/wiki/Standpipe_(firefighting)

   External access point for fire sprinkler and dry standpipe at a building in San Francisco, US Antique wet standpipe preserved at Edison and Ford Winter Estates. A standpipe or riser is a type of rigid water piping which is built into multi-story buildings in a vertical position, or into bridges in a horizontal position, to which fire hoses can be connected, allowing manual application of water ...

7. How to Fix Your Frozen Pipes, According to Experts - AOL

   www.aol.com/lifestyle/keep-pipes-freezing-winter...

   If your pipes are exposed, we recommend using a hair dryer, heating pad, or space heater to help thaw your pipes and get water moving again. (Note: Never leave the latter two methods unsupervised.)